1011220233 has 16 divisors (see below), whose sum is σ = 1359970560. Its totient is φ = 668334464.

The previous prime is 1011220229. The next prime is 1011220271. The reversal of 1011220233 is 3320221101.

It is a cyclic number.

It is not a de Polignac number, because 1011220233 - 2² = 1011220229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011220283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164035 + ... + 170087.

It is an arithmetic number, because the mean of its divisors is an integer number (84998160).

Almost surely, 2^1011220233 is an apocalyptic number.

It is an amenable number.

1011220233 is a deficient number, since it is larger than the sum of its proper divisors (348750327).

1011220233 is a wasteful number, since it uses less digits than its factorization.

1011220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1011220233 is about 31799.6891965944. The cubic root of 1011220233 is about 1003.7261760336.

Adding to 1011220233 its reverse (3320221101), we get a palindrome (4331441334).

The spelling of 1011220233 in words is "one billion, eleven million, two hundred twenty thousand, two hundred thirty-three".